Honda Marine BF75A Owner's Manual
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Honda Marine BF75A Owner's Manual

Marine outboard motor
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BF75A/90A
Owner's
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© HONDA MOTOR CO., LTD. 1995

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Summary of Contents for Honda Marine BF75A

  • Page 1 BF75A/90A Owner’s Manual © HONDA MOTOR CO., LTD. 1995...
  • Page 2 The engine exhaust from this product...
  • Page 3 Each message tells you what the hazard Thank you for purchasing a Honda SAFETY MESSAGES is, what can happen, and what you can Outboard Motor. Your safety and the safety of others are do to avoid or reduce injury. very important. We have provided...
  • Page 4 TYPES OF HONDA BF75AIBOA OUTBOARD MOTORS It may be necessary to refer to this chart for reference purposes when reading this manual. TYPE CODE (example) T=Power Trim /Tilt R=Remote Control H=Tiller Handle X=Extra Long Shaft L=Long Shaft...
  • Page 5 IDENTIFICATION NUMBERS Record the Product Identification LEFTSTERNBRACKET Number (P.I.N.) and the Engine Serial Number for your reference. Refer to the Product Identification Number when ordering parts, and when mak- ing technical or warranty inquiries (see page 136). PRODUdT IDENTIFICATION NUMBER ENGIN’E SERIAL NUMBER The Engine Serial Number is stamped The Product Identification Number is...

  • Page 6: Table Of Contents

    CONTENTS 1. SAFETY (PANEL-MOUNT TYPE) Trim Tab ........39 Remote Control Lever..
  • Page 7 CONTENTS Manual Relief Valve ....87 Lubrication ......1 18 STARTING THE ENGINE Engine Fuel Filter....12 1 Tilt Lock Lever......88 (TILLER HANDLE TYPE) ..55 STARTING THE ENGINE Trim Tab Adjustment ....89 Fuel Tank and Filter ....

  • Page 8: Safety

    1. SAFETY SAFETYLABELS These labels are in the locations shown. They warn you of potential hazards that could seriously injure you. Read these labels carefully. FUEL TANK...

  • Page 9: Safety Information

    1. SAFETY SAFETY INFORMATION Before operating the outboard Refuel carefully to avoid spilling motor, familiarize yourself with all For your safety and the safety of oth- fuel. Avoid overfilling the fuel tank laws and regulations relating to ers, pay special attention to these pre- (there should be no fuel in the filler cautions.
  • Page 10 2. COMPONENT IDENTIFICATION (TILLER HANDLE TYPE) THROTTLE GRIP ENGINE COVER POWER TILT LOCK LEVER L HOSE CONNECTOR HROTTLE FRICTION KNOB WASH PLUG VALVE ENGINE OIL HIFT LEVER DRAIN BOLT ACCESS COV ‘I-VENTILATION NITION SWITCH ANODE METAL TRANSOM ADJUSTING RO NODE METAL GEAR OIL WATER INTAKE DRAIN PLUG...
  • Page 11 2. COMPONENT IDENTIFICATION (TILLER HANDLE TYPE) OIL PRESSURE INDICATOR LIGHT EMERGENCY STOP SPARE EMERGENCY SWITCH THROTTLE STOP SWITCH CLIP FRICTION KNOB IGNIilON POWER TRIM/TILT LEVER EMERGENCY SWITCH SWITCH STOP SWITCH CLIP...

  • Page 12: Component Identification

    2. COMPONENT IDENTIFICATION (REMOTE CONTROL TYPE) LEVEL DIPSTICK OIL FILLER ENGINE COVER ENGINE COVER LOCK LEVF:R POWER TILT SWITCH WASH PLUG yfr;EAL RELIEF ENGINE OIL DRAIN BOLT ACCESS COV ANODE METAL ANTI-VENTILATION TRANSOM ANGLE ADJUSTING ANODE METAL CHECK WATER INTAKE REAR VENT PLUG...
  • Page 13 2. COMPONENT IDENTIFICATION (REMOTE CONTROL TYPE1 (SIDE-MOUNT REMOTE CONTROL) (PANEL-MOUNT REMOTE CONTROL) POWER TRIM/TILT NEUTRAL POWER TRIM/TILT SWITCH RELEASE SWITCH LEVER OVERHEAT INDICATOR LIGHT EMERGENCY STOP SWITCH (INSIDE) REMOTE CONTROL FRICTION ADJUSTE ITCH SWITCH LANYARD EMERGENCY STOP SWITCH CLIP...
  • Page 14 2. COMPONENT IDENTIFICATION (REMOTE CONTROL TYPE) (DUAL TOP-MOUNT (SINGLE TOP-MOUN’I REMOTE CONTROL) REMOTE CONTROL) POWER TRIM/TILT SWITCH . CONTROL LEVER POWER TRIM/TILT SWITCH (RIGHT INDIVIDUAL ADJUSTMENT) POWER TRIWILT SWITCH (LEFT INDIVIDUAL CONTROL PANEL ADJUSTMENT) (for PANEL/TOP- MOUNT type) IGNITION SWITCH EMERGENCY &-g&H...
  • Page 15 2. COMPONENT IDENTIFICATION (COMMON) METER FUEL TANK (optional equipment) VENT KNOB FUEL G\AUGE FUEL TANK (optional equipment) TRIM METER FUEL TACHOMETER FUEL HOSE CONNECTOR (optional equipment) (female) PRIMER BULB...

  • Page 16: Ignition Switch

    3. CONTROLS (TILLER HANDLE TYPE) Gear Shift Lever Ignition Switch Choke Knob IGNITION SWITCH START GEAR SHIFT LEVER CHOKE KNOB There are three gearshift lever posi- When the engine is cold, pull the Move the gearshift lever to the N tions.

  • Page 17: Throttle Grip

    3. CONTROLS (TILLER HANDLE TYPE) Throttle Friction Knob Throttle Opening Indicator Throttle Grip THROTTLE OPENING INDICATOR THROTTLE GRIP THROTTtE FRICTION KNOB Use the throttle friction knob to set the The curve on the grip label indicates Turn the grip clockwise or counter- throttle grip at a certain position while throttle opening.

  • Page 18: Engine Stop Switch

    3. CONTROLS (TILLER HANDLE TYPE) Emergency Stop Switch Lanyard Emergency Stop Switch EMEdGENCY STOP SWITCH CLIP STOP SWITCH LANYARD EMERGENCY STOI; SWITCH LANYARD The emergency stop switch lanyard is The emergency stop switch clip must Attach the emergency stop switch lan- provided to stop the engine immedi- yard securely to the operator when be engaged with the emergency stop...

  • Page 19: Oil Pressure Indicator Light

    3. CONTROLS (TILLER HANDLE TYPE) Oil Pressure Indicator Light Overheat Indicator Light SPARE EMERGENCY STOP SWITCH CLIP OIL PRESSURE INDICATOR LIGHT OVER HEAT INDICATOR LIGHT A spare emergency stop switch clip is The green oil pressure indicator light When there is a cooling system pro- provided near the ignition switch.

  • Page 20: I7 Power Trim/Tilt Switch

    3. CONTROLS (TILLER HANDLE TYPE) Steering Friction Adjuster Power Trim/Tilt Switch Power Trim Press the power trim/tilt switch on the tiller handle to adjust the motor trim angle from 0” to 20” to maintain proper boat trim. The power trim/tilt switch located on the tiller handle can be operated while the boat is under way or while stopped.

  • Page 21: (Side-Mount Type) Remote Control Lever

    3. CONTROLS (REMOTE CONTROL TYPE) (SIDE-MOUNT TYPE) Remote Control Lever OPENING THROTTLE OPENlN NEUTRAL RELEASE REMOTE CONTROL LEYER The remote control lever controls gear R (reverse): F (forward): Moving the lever to the R position selection and throttle opening posi- Moving the lever to the F position (approximately 30”...

  • Page 22: Neutral Release Lever

    3. CONTROLS (REMOTE CONTROL TYPE) Ignition Switch Neutral Release Lever To run the engine after starting (the battery will discharge if the key is left in this position with the engine not running). To stop the engine (IGNITION OFF). To prevent the battery from dis- charging, keep the key in the OFF position when the engine is not run- The neutral release lever is on the...

  • Page 23: Emergency Stop Switch Lanyard

    3. CONTROLS (REMOTE CONTROL TYPE) Emergency Stop Switch Lanyard EMERGENCY SPAkE EMERGENCY SWITCH CLIP STOP SWITCH CLIP SWITCH LANYARD A spare emergency stop switch clip is The emergency engine stop switch The emergency stop switch lanyard is provided on the remote control box. should not he used to normally stop provided to stop the engine immedi- the engine.

  • Page 24: Choke/Fast Idle Lever

    3. CONTROLS (REMOTE CONTROL TYPE) Choke/Fast Idle Lever Manual Choke Knob /+MAXIMUM FAST IDLE OWEST POSITION CHOKE/FAST IDLE LEVER CHOKE KNOB The choke/fast idle lever provides two Raise the choke/fast idle lever, and manual choke knob is located on functions: hold it all the way up to provide a the right side of the motor, which can 1.

  • Page 25: Oil Pressure Indicator Light/Buzzer

    3. CONTROLS (REMOTE CONTROL TYPE) Oil Pressure Indicator Light/Buzzer Overheat Indicator Light/Buzzer The green oil pressure indicator light overheat indicator light turns The red turns OFF and the buzzer sounds ON and the buzzer sounds when there when the oil level is low and/or the is a cooling system problem.

  • Page 26: Power Trim/Tilt Switch

    3. CONTROLS (REMOTE CONTROL TYPE) Power ‘Rim/Tilt Switch Power Trim Press the power trim/tilt switch on the remote control to adjust the motor trim angle from 0” to 20” to maintain proper boat trim. The power trim/tilt switch located on the remote CONTROL control lever can be operated while the LEVER...

  • Page 27: (Panel-Mount Type) Remote Control Lever

    3. CONTROLS (REMOTE CONTROL TYPE) (PANEL-MOUNT TYPE) Remote Control Lever THROTTLE OPENING THROTTLE OPENING AL RELEASE MAXIMUM ’ REMOTE CONTROL LEVER F (forward): R (reverse): The remote control lever controls gear selection and throttle opening positions. Moving the lever to the F position Moving the lever to R position (approximately 35”...

  • Page 28: Nertral Release Lever

    3. CONTROLS (REMOTE CONTROL TYPE) Neutral Release Lever Ignition Switch START To run the engine after starting (the battery will discharge if the key is left in this position with the engine not running). To stop the engine (IGNITION NEUTRAL RELEASE OFF).

  • Page 29: Emergency Stop Switch Lanyard

    3. CONTROLS (REMOTE CONTROL TYPE) Emergency Stop Switch Lanyard EMERGENCY STOP SWITCH SPARE EMERGENCY STOP SWITCH CLIP EMERGEkCY STOP SWITCH LANYARD The emergency engine stop switch A spare emargency switch clip is The emergency stop switch lanyard is should not he used to normally stop provided in the tool bag.

  • Page 30: Throttle Button

    3. CONTROLS (REMOTE CONTROL TYPE) Manual Choke Knob Throttle Button Choke Switch l ..**ljsckword (Neutral) CHOKi KNOB By moving the control lever forward When the engine is cold, put the A manual choke knob is located on or backward when the throttle button the right side of the motor, which can choke switch “ON”.

  • Page 31: Oil Pressure Indicator Light/Buzzer

    3. CONTROLS (REMOTE CONTROL TYPE) Overheat Indicator Light/Buzzer Oil Pressure Indicator Light/Buzzer The green oil pressure indicator light The red overheat indicator light turns turns OFF and the buzzer sounds ON and the buzzer sounds when there when the oil level is low and/or the is a cooling system problem.

  • Page 32: Power Trim/Tilt Switch

    3. CONTROLS (REMOTE CONTROL:) Power lkim/Tilt Switch Power Trim Press the power trim/tilt switch on the remote control lever to adjust the motor trim angle from 0” to 20” to maintain proper boat trim. The power trim/tilt switch located on the remote control lever can be operated while the boat is under way or while stopped.

  • Page 33: (Top-Mount Type)

    3. CONTROLS (REMOTE CONTROL TYPE) (TOP-MOUNT TYPE) Remote Control Lever SINGLETYPE OPENING THROTTI DUALTYPE REMOTECONTROLLEVER R (reverse): F (forward): Moving the lever to the R position the lever to the position Moving (approximately 35” from the N (approximately 35” from the N position) will engage the forward position) will engage the reverse Moving...

  • Page 34: Ignition Switch

    3. CONTROLS (REMOTE CONTROL TYPE) Ignition Switch To run the engine after starting (the battery will discharge if the key is left in this position with the engine not running). (IGNITION stop the engine OFF). prevent the battery from dis- charging, keep the key in the SWITCH position when the engine is not run-...

  • Page 35: Emergency Stop Switch Lanyard

    3. CONTROLS (REMOTE CONTROL TYPE) Emergency Stop Switch Lanyard EMERGENCY SPARE EMERGENCY STOP SWITCH CLIP Y STOP SWITCH SWITCH CLIP LANYARD The emergency stop switch @yard is The emergency engine stop switch A spare emargency switch clip is provided to stop the engine immedi- should not be used to normally stop provided in the tool bag.

  • Page 36: Throttle Button

    3. CONTROLS (REMOTE CONTROL TYPE) Throttle Button Manual Choke Knob Choke Switch N (neutral) Backward CHOKL KNOB BUTTON When the engine is cold, put the choke By moving the control lever forward or A manual choke knob is located on switch on.

  • Page 37: Oil Pressure Indicator Light/Buzzer

    3. CONTROLS (REMOTE CONTROL TYPE) Oil Pressure Indicator Light/Buzzer Overheat Indicator Light/Buzzer The green oil pressure indicator light The red overheat indicator light turns turns OFF and the buzzer sounds ON and the buzzer sounds when there when the oil level is low and/or the is a cooling system problem.

  • Page 38: Power Trim/Tilt Switch

    3. CONTROLS (REMOTE CONTROL TYPE) Power Trim/Tilt Switch Power Trim/Tilt Switch SINGLE TYPE (remote control lever) (control box console) Power lkim Press the power trim/tilt switch on the LEFT INDIVIDUAL ADJUSTMENT remote control lever to adjust the CONTROL motor trim angle from 0” to 20” to main- LEVER tain proper boat trim.

  • Page 39: Power Tilt Switch (Engine Pan)

    3. CONTROLS (COMMON) Trim Meter Power Tilt Switch (engine pan) Tachometer (optional equipment) TRIM METER TACHO ETER POWER TILT SWITCH has a range of 0” to 20” The tachometer shows the approxi- The power tilt switch located on the The trim meter and indicates the trim angle of the out- mate engine speed in revolutions per engine pan is for tilting the motor for...

  • Page 40: Manual Relief Valve

    3. CONTROLS (COMMON) Manual Relief Valve If the power trim/tilt switch will not MANUAL RELIEF VALVE tilt the outboard motor, the motor can be manually tilted up or down by opening the manual relief valve. To tilt the outboard motor manually, turn the manual valve under the left stem bracket no more than 1 or 2 turns counterclockwise using a screwdriver.

  • Page 41: Tilt Lock Lever

    3. CONTROLS (COMMON) Tilt Lock Lever Trim Distribute the load evenly in the boat, run the boat in straight course at ‘ER full throttle. Slightly turn the steering wheel or tiller handle for both right and left turns to determine if an equal amount of effort is required.

  • Page 42: Anode Metal

    3. CONTROLS (COMMON) Water Intakes Anode Metal Cooling System Indicator (each 4 FL (each side) COOLING SYSTEM INDICATOR The engine cooling water is drawn The anodes are made from a sacrificial The cooling system is monitored here into the water pump through these material which helps to protect the to make sure cooling water is circulat- outboard motor from corrosion.

  • Page 43: Transom Angle Adjusting Rod

    3. CONTROLS (COMMON) The motor should never be operated Transom Angle Adjusting Rod TRANSOM ANGLE ADJUSTING with the transom angle adjusting rod TO CHANGE UNLOCKED removed. POSITION LOCKED POSITION TO LOCK TRANSOM AiGLi ADJUSTING Start with the transom angle adjusting The transom angle adjusting rod is rod in the hole closest to the boat tran- used to adjust the motor angle to...

  • Page 44: Fuel Cap/Gauge/Vent Knob

    3. CONTROLS (COMMON) Over-Rev Limiter Before transporting or storing the fuel Fuel Cap/Gauge/Vent Knob This outboard motor is equipped (optional fuel tank) tank, turn the vent knob fully clock- with an engine over-rev limiter which limits wise to the closed position. VENT KNOB the maximum engine rpm.

  • Page 45: Engine Cover Lock Lever

    3. CONTROLS (COMMON) Fuel Hose Connectors Engine Cover Lock Levers FUEL HOSE CONNECTOR (outboard motor) REAR FRONT FREE FREE ENGINE COVER ENGINE COVER ’ LOCK LEVER LOCK LEVER FUEL HOSE CONNECTOR The engine cover look levers are used (optional, portable fuel tank) to fasten the engine cover.

  • Page 46: Pre-Operation Checks

    4. PRE-OPERATION CHECKS Engine Cover Removal/Installation (REAR) (FRONT) FREE ENGINE COVER LOCK LEVER To remove, turn the front and rear To install, position the engine cover engine cover lock levers to the FREE over the engine and turn the front and position and remove the engine cover.

  • Page 47: Engine Oil

    4. PRE-OPERATION CHECKS OIL FILLER Engine Inspection 1. Position the outboard motor verti- Engine oil is a major factor affecting cally, and remove the engine cover. engine performance and service life. UPPER LIMIT 2. Remove the oil level dipstick and MARK wipe with a clean rag.

  • Page 48: Fuel Level (Optional Fuel Tank)

    4. PRE-OPERATION CHECKS (optional fuel tank) Fuel Level VENT KNOB b I k FUEi ‘AP Refilling Check the fuel gauge and refill the Gasoline is highly tank to the SAFE FILL level mark if Remove the fuel tank from the boat flammable and explosive, necessary.

  • Page 49: Fuel Recommendations

    This is no cause for concern. If spark knock or pinging occurs at a steady engine speed, under normal load, change brands of gasoline. If spark knock or pinging persists, see an authorized Honda Ma- rine dealer. Running the engine with persistent spark knock or pinging can cause engine damage.

  • Page 50: Oxygenated Fuels

    4. PRE-OPERATION CHECK!3 Oxygenated Fuels METHANOL -(methyl or wood alcohol) 5% by volume Some conventional gasolines are being blended with alco- You may use gasoline containing up to hol or an ether compound. These gasolines are collec- 5% methanol by volume, as long as it tively referred to as oxygenated fuels.

  • Page 51: Propeller And Cotter Pin Inspection

    3. Check the cotter pin for damage. ler and fastening hardware aboard. If no Replace whenever the propeller is spare propeller is available, return to the Consult with your authorized Honda faulty. pier at low speed and replace. outboard motor dealer for proper propeller selection.

  • Page 52: Steering Friction Adjustment (Tiller Handle Type)

    4. PRE-OPERATION CHECKS Steering Friction Adjustment Remote Control Friction (Tiller handle Type) Adjustment (PANEI.-MOUNT TYPE) (SIDE-MOUNT TYPE) REMOTE CONTROL FRICTION ADJUSTER TO DECREASE TO DECREASE ADJUSTER FRICTION FRICTION FRICTION Operate the tiller handle right and left Move the remote control lever into TO DECREASE (TOP-MOUNT TYPE)

  • Page 53: Engine Cover Lock Lever Adjustment

    4. PRE-OPERATION CHECKS Engine Cover Lock Lever Adjustment 3. Adjust if the clerance is outside the Inspect front and rear end individually. If the engine cover becomes loose, it specified range. will shake and become noisy, and it may allow water to enter. Adjustment FRONT 1.

  • Page 54: Other Checks

    4. PRE-OPERATION CHECKS 2. After the adjustment, tighten the bolts The anodes help to protect the outboard The following materials should be kept securely and install the engine cover. motor from corrosion any time with the boat: they are exposed directly to the water. Reinspect the clearance and readjust 1.

  • Page 55: Startlng The Engine

    5. STARTING THE ENGINE Optional Fuel Tank Fuel Line Connection VENT KNOB FUEL HOSE CONNECTOR (FUEL TANK END)\ The fuel tank must be properly se- I. Open the fuel tank vent by turn- Inspect the fuel hose, and the O-ring ing the vent knob at least 2 or 3 cured in the boat.
  • Page 56 5. STARTING THE ENGINE FUEL HOSE CONNkXTOH OUTLET OUTLET PRIMER PRIMER BULB BULB 3. Hold the primer bulb so that the Gasoline is hinhlv 2. Connect the fuel hose connector outlet end is higher than the inlet to the outboard motor. Install the flammable and explosive, end.

  • Page 57: Starting The Engine

    (TILLER HANDLE TYPE) 5. STARTING THE ENGINE Ignition Switch Shift Lever Choke Knob GEAR SHIFT LEVER CHO’KE KNOB IGkITION SWITCH Move the gearshift lever to the N There are three gearshift lever posi- When the engine is cold, pull the (neutral) position before starting.
  • Page 58 5. STARTING THE ENGINE (TILLER HANDLE TYPE) EMERGENCY STOP SWITCH If the operator does not attach the emergency stop switch lanyard, and is thrown from his seat or out of the boat, the out-of-control boat can seri- ously injure ttne operator, pas- sengers, or bystanders.
  • Page 59 5. STARTING THE ENGINE (TILLER HANDLE TYPE) CH‘OKE KNOB POINTER 4. When the engine is cold or ambient THROTTLE GRIP STAii temperature is low pull the choke knob. 3. Align the engine start symbol ” QI ” on the throttle grip with the 5.
  • Page 60 Turn the obstructions. If the problem continues, contact your throttle grip in the SLOW direction to a position where closest authorized Honda Marine dealer. the engine does not stall. 7. After the engine starts, verify that water is flowing through the cooling system by monitoring the cooling system indicator.

  • Page 61: Starting The Engine (Emergency Starting)

    ON. Check the engine oil level (see page 45). If the oil level is normal and the oil pressure indicator light does not turn ON, contact your closest authorized Honda Marine dealer.
  • Page 62 5. STARTING THE ENGINE (REMOTE CONTROL TYPE) (SIDE-MOUNT TYPE) If the orxwator does not attach the emeigency stop switch lanyard, and is thrown from his seat or out of the boat, the out-of-control boat can seri- ously injure the operator, pas- CONTRO sengers,...
  • Page 63 CONTROL TYPE) 5. STARTING THE ENGINE (REMOTE FAST CHOKE/FAST IDLE LEVER CHOKEiFAST IDLE LEVER 3. When the engine is cold or the 4. Holding the choke/fast idle lever in position, turn the ignition switch ambient temperature is low, lift the Do not turn the ignition switch...
  • Page 64 If the problem continues, contact your turn ON, contact your closest authorized Honda Marine closest authorized Honda Marine dealer. dealer. 8. Warm up the engine as follows:...
  • Page 65 5. STARTING THE ENGINE (REMOTE CONTROL TYPE) (PANEL-MOUNT TYPE) If the ooerator does (neutral) not attach the emeigency stop switch lanyard, and is thrown from his seat or out of the boat, the out-of-control boat can seri- ously injure the operator, pas- sengers, or bystanders.
  • Page 66 5. STARTING THE ENGINE (REMOTE CONTROL TYPE) (neutral) START SWITCH [NOTICE] 3. Move the control lever forward or 5. Holding the choke switch in position Do not turn the ignition switch backward pushing the throttle button (ON), turn the ignition swich key to kev to the start position while...
  • Page 67 ON, contact your closest authorized Honda Marine Check the water intake screens and the cooling system dealer.
  • Page 68 5. STARTING THE ENGINE (REMOTE CONTROL TYPE) (TOP-MOUNT TYPE) 1. Engage the emergency stop switch (neutral) clip (located 81 one end of the emer- gency stop switch lanyard) with the emergency stop switch. Attach the other end of the emer- gency stop switch lanyard securely to the operator.
  • Page 69 : 5. STARTING THE ENGINE (REMOTE CONTROL TYPE) START (neutral) (neutral) CHbKE SWITCH 5. Holding the choke switch in the ON Move the control lever(s) forward [NOTICE/ position, the ignition switch key turn or backward pushing the throttle Do not turn the ignition switch to the START position and release...
  • Page 70 ON, contact your closest authorized Honda Marine obstructions. If the problem continues, contact your dealer. closest authorized Honda Marine dealer.
  • Page 71 STARTING) 5. STARTING THE ENGINE (EMERGENCY Emergency Starting BOLTS HOOKS BOLTS ENGINE COVER L&K LEVER 2. Loosen the four bolts and the If the electric starting system will not three hooks, then remove the start the engine, the engine can be flywheel cover.
  • Page 72 5. STARTING THE ENGINE (EMERG:ENCY STARTING) TILLER HADLE TYPE (TILLER HANDLE TYPE) PANEL-IMOUNT SPARE EMERGENCY STOP MERGENCY SW ITCH (neutral) :TOP (neutral) CLIP IGNITION SWITCH (REMOTE CONTROL TYPE) EMERGENCY STOP EMERGENCY SIDE-MOUNT SWITCH CLIP STOP SWITCH TOP-MOUNT (neufral) LANYARD (neutral) 4.
  • Page 73 5. STARTING THE ENGINE (EMERGENCY STARTING) SIDE-MOUNT TYPE PANEL-MOUNT TYPE, TOP MOUNT TYPE IGNITION ITCH CHbKE KNOB EMEkGENCY 6. If the engine is cold or the ambient STOP SWITCH LANYARD temperature is low, pull the manual choke knob located on the front of the outboard motor.
  • Page 74 5. STARTING THE ENGINE (EMERGENCY STARTING) (TILLER HANDLE TYPE) (REMOTE CONTROL TYPE) TOP-MOUNI SIDE-MOUNT ENGINE START SYMBOL CHOKE/ FAST CONTROL LEVER POIN/TER THROTTLE GRIP THROTTLE BUTTON 7. On the tiller handle type, align the On the panel-mount and top-mount engine start symbol “ QI” on the remote control type, move the control PANEL-MOUNT throttle grip with the pointer “b”...
  • Page 75 10. If the manual choke was used to yard securely to the operator, and start the engine, slowly return it to return to the closest boat landing. its initial position. Contact your closest authorized Honda Marine dealer, and have the outboard motor and the electrical system checked.

  • Page 76: Troubleshooting Starting Problems

    5. STARTING THE ENGINE (TROUEiLESHOOTING) Troubleshooting Starting Problems SYMPTOM POSSIBLE CAUSE REMEDY Starter motor 1. Shift lever not in I. Set shift lever in doesn’t turn neutral position. neutral positon. over. 2. Blown fuse. 2. Replace fuse. (refer to page 124) starter 3.

  • Page 77: Operation

    6. OPERATION Break-in Procedure of full throttle are acceptable, but Break-in period 10 hours do not operate the engine contin- Break-in operation allows the moving uously at full throttle. parts to wear-in evenly and thus ensures proper performance and Next 8 hours: longer outboard motor life.

  • Page 78: Gear Shifting

    6. OPERATION (TILLER HANDLE TYPE) Gear Shifting Steering THROTTLE OPENING INDICATOR TURN RIGHT TURN LEFl- POINTER Move the tiller Move the tiller GEAR SHiFT LEVER handle to the left. handle to the right. Gearshift lever has 3 positions: The throttle mechanism is designed to The tiller handle is moved in the oppo- limit the throttle grip travel when FORWARD,...

  • Page 79: Cruising

    6. OPERATION (TILLER HANDLE TYPE) Cruising SWITCH boat by returning the throttle to the I. Press the DN portion of the power 2. With the gearshift lever in the F slow speed side. trim/tilt switch to tilt the motor (forward) position, the throttle turn to the lowest position.

  • Page 80: (Side-Mount Type)

    6. OPERATION (REMOTE CONTROL, TYPE) (SIDE-MOUNT TYPE) Gear Shifting (nekal) .jforward) &eke) ‘I ,‘I 3 PULL UP OPENING The control lever will not move unless Moving the control lever farther While pulling up the neutral release the neutral release lever is pulled up, forward or backward than 30”...

  • Page 81: Cruising

    6. OPERATION (REMOTE CONTROL TYPE) Cruising (neutral) POWER TRIM/TILT SWITC (forward) Moving the control lever father LOWEST I. Press the DN portion of the power than 30” will increase the throttle POSITION trim/tilt switch to tilt the motor to opening and boat speed. the lowest position.

  • Page 82: (Panel-Mount Type)

    6. OPERATION (REMOTE CONTROL, TYPE) (PANEL-MOUNT TYPE) kear Shifting (neutral) (neutral) CONTROL LEVER] A/g=jsp%E?~ POWER MAXIMUM TRIM/TILT OPENING SWITCH While pulling up the neutral release Moving the control lever farther The control lever will not move unless forward or backward than 35” will lever, move the control lever the neutral release lever is pulled up.

  • Page 83: Cruising

    6. OPERATION (REMOTE CONTROL TYPE) Cruising (neutral) (forFward) MAXIMUM OPENING Moving the control lever farther I. Press the DN portion of the power than 35” will increase the throttle trim/tilt switch to tilt the motor to opening and boat speed. 2.

  • Page 84: Gear Shifting

    6. OPERATION (REMOTE CONTROL TYPE) (TOP-MOUNT TYPE) Gear Shifting (nertral) (reikrse) SINGLE TYPE ,’ MAXIMUM OPENING OPENING DUAL TYPE Moving the control lever farther control lever will not move unless forward or backward than 35” will the neutral release lever is pulled up. increase throttle opening and boat speed.

  • Page 85: Cruising

    6. OPERATION (REMOTE CONTROL TYPE) Cruising LEFT MOTOR RIGHT MOTOR (neutral) TRIM/TILT SWITCH SINGLE TYPE TRIM/TILT SWITCH (fcbiard) POWER TRIM/TILT SWITCH MAXIMUM OPENING DUAL TYPE Moving the control lever farther POWER TRIM/TILT than 35” will increase the throttle SWITCH opening and boat speed. If your boat is dual outboard motor 3.

  • Page 86: Power Trim/Tilt

    6. OPERATION (POWER TRIM/TILT) The power trim/tilt system operates Power Trim/Tilt System POWER TRIM/TILT SWITCH when the switch is pressed, and it stops when the switch is released. The power trim/tilt system can adjust the motor angle while cruising, or the motor tilt angle while mooring.

  • Page 87: Power Trim/Tilt

    6. OPERATION (POWER TRIM/TILT) (NOTICE1 Dual-Mount Type Power Trim/Tilt Switches Excessive trim/tilt angle during operation can cause the propeller to LEFT INDIVIDUAL ADJUSTMENT raise out of the water and cause propeller ventilation and engine over-revving. Excessive trim/tilt angle can also damage the water pump and overheat the engine.

  • Page 88: Trim Meter

    6. OPERATION (POWER TRIM/TILT) Trim Meter The trim meter indicates the trim angle of the motor. Refer to the trim meter, and MOTOR TRIMMED MOTOR TRIMMED press the UP or DN portion of the power trim/tilt switch to adjust, the motor trim TOO LOW TOO HIGH angle to achieve good boat performance and stability.

  • Page 89: Power Tilt Switch (Engine Pan)

    6. OPERATION (POWER TRIM/TILT) Manual Relief Valve Power Tilt Switch (Engine Pan) After tilting the motor, turn the manual MANUAL RELIEF VALVE relief valve clockwise securely. The manual relief valve must be tightened securely before operating the motor, or the motor could tilt up when operating in reverse.

  • Page 90: Tilt Lock Lever

    6. OPERATION (POWER TRIM/TILT) TILT I.OCK TILT LOCK LEVER Tilt Lock Lever It may be necessary to lift the engine cover grip slightly to swing the tilt Use the tilt lock lever when the boat is moored. lock lever into the LOCK position. 1.

  • Page 91: Trim Tab Adjustment

    6. OPERATION Trim Tab Adjustment TIGHTENING BOLT Make small adjustments at a time and If less effort is required to make left The trim tab is provided to adjust for retest. Incorrect trim tab adjustment “torque steer” which is a reaction of turns: can cause adverse steering.

  • Page 92: Engine Oil Pressure And Overheat Warning System

    6. OPERATION (MOTOR PROTECTION SYSTEM) Engine Oil Pressure and Overheat Warning System If the engine oil pressure drops and/or the engine overheats, either or both warning systems could be activated. When activated, the engine speed will gradually, the decrease green oil OFF, pressure indicator light will turn and the red overheat indicator light...
  • Page 93 When the overheat warning system is after cruising at full throttle, the closest authorized Honda Marine activated: engine speed may drop below the dealer. specified idle speed. This could 1. Return the gearshift lever or control...

  • Page 94: Over-Rev Limiter

    6. OPERATION (MOTOR PROTECTION SYSTEM) Over-Rev Limiter Anodes This outboard motor is equipped with an engine over-rev limiter which acti- vates when the engine speed increases excessively. The over-rev limiter can be activated while cruising, tilting up the motor, or when ventilation occurs during a sharp turn.

  • Page 95: Shallow Water Operation

    6. OPERATION Shallow Water Operation Excessive trim/tilt angle during operation can cause the propeller raise out of the water and cause propeller ventilation and engine over-revving. Excessive trim/tilt angle can also damage the water pump and overheat the engine. When operating in shallow water, tilt the motor up to prevent the propeller and gear case from hitting the bottom With the motor tilted up, operate the...

  • Page 96: High Altitude Operation

    Marine dealer return the carburetors to original factory have an authorized Honda Marine dealer perform this car- specifications if modified. buretor modification. Even with carburetor modification. engine horsepower will decrease about 3.5% for each 1,000 foot (300 meter) increase in altitude. The effect of altitude on horsepower will be greater than this if no carburetor modification is made.
  • Page 97 7. STOPPING THE ENGINE (TILLER HANDLE TYPE) Emergency Engihe Stop Normal Engine Stop EMERGENCY STOP SWITCH EMERGENCY STOP SWITCH LANYARD THROTTLE GRIP IGNITION SWITCH (Nesrral) EMEIibENCY STOP SWITCH CLIP Disengage the emergency stop switch 2. Turn the ignition switch to the OFF clip from the emergency stop switch by position.

  • Page 98: (Side-Mount Type)

    7. STOPPING THE ENGINE (REMOTE CONTROL TYPE) (SIDE-MOUNT TYPE) Normal Engine Stop Emergency Engine Stop N (neutral) EMERr-“!‘!CF’ EMERGENCY STOP SWITCH LANYARD PULL IGNITION EMERGENCY STOP SWITCH CLIP 2. When the boat is not in use, remove I. Move the control lever to the N Disengage each emergency stop switch and store the ignition keys.
  • Page 99 7. STOPPING THE ENGINE (REMOTE CONTROL TYPE) Normal Engine Stop (PANEL-MOUNT TYPE) Emergency Engine Stop N(neutral) ONTROL PANEL EMERGENC STOP SWITC EMERGENCY STOP SWITCH LANYARD EMERdENCY STOP SWITCH CLIP 2. When the boat is not in use, remove I. Move the control lever to the N Disengage the emergency stop switch and store the ignition key.
  • Page 100 7. STOPPING THE ENGINE (REMOTE CONTROL TYPE) (TOP-MOUNT TYPE) Normal Engine Stop Emergency Engine Stop N(neutral) EMERGENCY CONTROL PANEL STOP SWITCH EMERGENCY STOP SEITCH LANYARD EMERGENCY STOP SWITCH CLIP 2. When the boat is not in use, remove Disengage the emergency stop switch I.

  • Page 101: Transporting

    8. TRANSPORTING Before transporting the outboard motor, If there is insufficient road clearance Trailering always follow the carburetor drain with the motor in the normal run procedure on page 128. position, then trailer the motor in the tilted position using a motor support bar (refer to your motor support bar Close the fuel cap vent knob (refer manufacrurer’s instructions) or...
  • Page 102 ’ 8. TRANSPORTING Transporting on a vehicle BOLTS IIOOKS LIFTING BOLTS STARTER When transporting the outboard motor PULLEY on a vehicle, perform following. I. Remove the engine cover(see page 69) 3. Install the lifting eye (optional part) TIMING BELT COVER center of the starter pulley and tighten securely.
  • Page 103 8. TRANSPORTING Horizontal Transport Before removing the motor from the boat, drain the carburetors and engine LIFTING oil. Follow the carburetor drain procedure on page128. STAND 5. Place the motor on an outboard 4. Hook the hoist hook to the lifting- eye, and lift the motor from the boat.
  • Page 104 9. CLEANING AND FLUSHING WATER JOINT 3. Connect a water hose to the water Thoroughly clean and flush the out- 2. Install the water hose joint in the hose joint, and turn on the water board motor with fresh water after water joint.

  • Page 105: Cleaning And Flushing

    9. CLEANING AND FLUSHING If using a headphone-type flush kit, temporarily cover the water intakes with duct tape. 4. Make sure that the water comes out from the exhaust port. 5. After flushing, remove the water hose joint and re-install the hose joint cap.

  • Page 106: The Importance Of Maintenance

    10. MAINTENANCE THE IMPORTANCE MAINTENANCE SAFETY professionals and are normally per- MAINTENANCE formed by a Honda technician or other qualified mechanic. Some of the most important sefcty Good maintenance is essential for safe, precautions follow. However, we economical, and trouble-free opera-...

  • Page 107: Emission Control System Information

    To ensure the best quality and reliability, use only new, genuine Let the engine cool before touch- Honda utilizes lean carburetor settings ing. Honda parts or their equivalents for and other systems to reduce the repair replacement. emissions of oxides of nitrogen and - Injury from moving parts.
  • Page 108 The following instructions and proce- Head starting or stalling after starting. dures must be followed in order to keep the emissions from your Honda Rough idle. engine within the emission standards. Misfiring or backfiring under load. Tampering and Altering Afterburining (backfiring).
  • Page 109 EPA emission regulations. We recommend machine will be used for its designed purpose. Sustained high-load or high- the use of genuine Honda parts whenever you have maintenance done. temperature operation, or use in unusually wet or dusty conditions, will These original-design replacement require more frequent service.

  • Page 110: Tool Kit And Spare Parts

    10. MAINTENANCE Tool Kit and Spare Parts TOOL KIT The following tools and spare parts are supplied with the outboard motor for maintenance, adjustment, and emer- gency repairs. 14 x 17 mm WRENCH 10 x 12 mm WRENCH PLIERS 8 mm WRENCH FLAT SCREWDRIVER SCREWDRIVER HANDLE...

  • Page 111: Maintenance Schedule

    10. MAINTENANCE MAINTENANCE SCHEDULE REGULAR SERVICE PERIOD FIRST EVERY EVERY EVERY...
  • Page 112 Emission-related items (I) Lubricate more frequently when used in salt water. (2) These items should be serviced by an authorized Honda Marine dealer, unless the owner has the proper tools and is mechanically proficient. See the Honda Shop Manual. (3) For professional commercial use, log hours of operation to determine proper...

  • Page 113: Engine Oil

    If the level is near the lower limit, refill up to upper limit. If the oil is dirty, replace it. If the oil is contami- nated with water (it becomes white as milk), see your authorized Honda marine dealer.
  • Page 114 10. MAINTENANCE OIL FILLER SCREW DRAIN BOLT DRAIN WASHER DRAIN PLUG COVER 2. Loosen the drain plug cover screw Engine Oil Replacement 3. Place a suitable container under the using a flat blade screwdriver and Drain the oil while the engine is still guide.

  • Page 115: Gear Oil

    10. MAINTENANCE Gear Oil 8. Reinstall the oil filler cap and Oil check interval: tighten securely. Every 100 hours. Always wash your hands after handling Oil change interval: used oil. After the first 20 hours or 1 month, then every 200 hours or 6 months. (Refer to Also, please dispose of used motor oil in the maintenance schedule page 109).
  • Page 116 2. Remove the oil level check plug, and verify that oil flows from the oil level check hole. If no oil flows out, contact your closest authorized Honda Marine dealer. The oil contaminated with water will be milky colored. If the oil appears abnormal, consult with your closest authorized Honda Marine dealer.

  • Page 117: Spark Plugs

    10. MAINTENANCE Spark Plugs To ensure proper engine operation, the 0.024-0.028 in spark plugs must be properly gapped (0.6-0.7 mm) and free of deposits. Check-replace interval: After the first 20 hours or 1 month then every 200 hours or 6 months (Refer to the maintenance schedule page 109).

  • Page 118: Battery (Not Included)

    10. MAINTENANCE Battery (not included) Minimum requirements 12V-70AH marine cranking battery. Check the battery cables to be sure they are securely connected to the battery terminals. Tighten if necessary. If the battery terminals are corroded or if recharging is necessary, remove the battery from the boat to clean or recharge.
  • Page 119 10. MAINTENANCE 4. Put the cover on the battery box, To protect the battery from mechani- and secure the battery box to the cal damage and to prevent the bat- tery from falling or tipping over, the boat. battery must be: Installed in the correct size corro- sion-resistant battery box.

  • Page 120: Lubrication

    10. MAINTENANCE - THROTTLE FRICTION- TILLER HANDLE Lubrication KNOB PIVOT Lubrication interval: After the first 20 hours or I month, then every 100 hours or 6 months. (Refer to the maintenance schedule page 109). Apply marine anticorrosion grease to the following parts: - GEAR SHIFI.
  • Page 121 10. MAINTENANCE SHIFT ARM THROTTLE REEL TILT SHAFT PROPELLR SHAFT TILT BRACKET...
  • Page 122 10. MAINTENANCE THROTTLE ARM/ SHIFT SHAFT -CHOKE ARM - CHOKE KNOB - SWIVEL CASE...

  • Page 123: Engine Fuel Filter

    10. MAINTENANCE Engine Fuel Filter Change interval: CONNECTOR FUEL PUMP Every 400 hours or 2 years FUEY HoSE (Refer to the maintenance schedule page 1 IO). Always work in a well-ventilated area. Make sure that any fuel drained from the outboard motor is stored in an approved gasoline container.
  • Page 124 10. MAINTENANCE FUt:L HOSES FUEL FILTER FUEL FILTER SPRING RETAINER FUEL H&E CLIPS ARROW (Fuel Flow Direction) 2. Install the new fuel filter so the 2. Pull the spring retainer toward you, Change arrow on the fuel filter points and raise the fuel filter. 1.

  • Page 125: Fuel Tank And Filter

    10. MAINTENANCE 4. Securely connect the fuel hose con- Fuel Tank Cleaning Fuel Tank and Filter nector to the outboard motor page (optional equipment) 1. Disconnect the fuel hose from the fuel tank. 5. Prime the engine using the primer Gasoline is high- bulb (refer to page 54).

  • Page 126: Fuse Replacement

    10. MAINTENANCE MAIN FUSE Fuse Replacement FUSE COVER FUEL TANK HOSE CONNECTOR BLOWN FUEL TANK FUSE FILTER If the fuse is blown, running the engine Fuel Tank Filter will not charge the battery, and the Cleaning/Replacement electric starter will not work. SUB FUSE 1.

  • Page 127: Propeller

    NOTE: To protect your hands, wear Install the thrust washer with the the heavy gloves during grooved side toward the gear case. placement. Use a genuine Honda cotter pin and bend the pin ends as shown.

  • Page 128: Submerged Motor

    Immediately take the outboard mo- tor to the closest authorized Honda EMERGENCY STARTER.ROPE Marine dealer or if you are far from a dealership, proceed as follows: 5.
  • Page 129 10. MAINTENANCE 8. Engage the emergency stop 9. Take the outboard motor to your switch clip with the emergency closest authorized Honda Marine stop switch, and attempt to start dealer for inspection and service the engine (be sure the water as soon as possible.

  • Page 130: 11. Storage

    3. Remove the drain hose from the g4 #I CARHURETOR motor, have your outboard motor ser- carburetor, and reinstall it on the # 3 DRAIN SCREW viced by an authorized Honda Marine carburetor to drain the fuel. #2 CARBURETOR dealer before storage. DRAIN SCREW 4.
  • Page 131 11. STORAGE Fuel Tank (optional equipment) Outboard Motor Position BOLTS HOOKS BOLTS VENT KNOB FUEL 1. Close the fuel cap vent knob. Store the motor vertically, as shown above. Store the outboard motor in a 2. Disconnect the fuel coupling well-ventilated area free from direct TIhiING...
  • Page 132 11. STORAGE LIFI‘ING STAND 3. Install the lifting eye (optional part) onto the center of the starter pulley and tighten securely. 4. Hook the hoist hook to the lifting 5. Place the motor on an outboard eye, and lift the motor from the motor stand and secure boat.
  • Page 133 11. STORAGE Horizontal strage Before removing the motor from the boat, drain the carburetors and engine oil. the carburetor drain Follow procedure on page 128. PROTECTOR Always rest the motor on protectors, and be sure to protect it from impact and damage. Always lay the motor carburetor side down.

  • Page 134: 12. Troubleshooting

    12. TROUBLESHOOTING (1) Engine does not start. Fuel Contamination There is no gasoline Fuel is not fed - No sparks Incorrect gap in fuel tank. across spark to carburetor. Broken spark plug Vent knob is not open or PM isap vent clogged.
  • Page 135 12. TROUBLESHOOTING (2) Engine starts but immediately stops. Engine some- times stops while cruising. Fuel Emgine overheats No gasoline in fuel tank. Water intake screens Normal sparking Water is mixed with are clogged. There is gasoline gasoline. Spark plug is not of speci- in fuel tank.

  • Page 136: 13. Specifications

    13. SPECIFICATIONS Starter system MODEL BF75A Electric starter BBAU Ignition system Description Code BBAL BHAL C.D.I. Lubrication system Trochoid pump pressure lubrication Type Specified Engine: API standard Overall length 910 mm 760 mm (SC, SH) SAE lOW-30/40 (35.8 in) (29.9 in) Gear case: API standard CL-4/5 Overall width...
  • Page 137 13. SPECIFICATIONS Starter system MODEL BF90A Electric starter BBBL BBBU Ignition system Description Code C.D.I. Lubrication system ‘be Trochoid pump pressure lubrication Specified oil Overall length API standard 910 mm Engine: 760 mm (SC, SH) SAE lOW-30140 (35.8 in) (29.9 in) Gear case: API standard GL-415 Overall width 480 mm...

  • Page 138: Warranty Service

    Date of purchase If you are dissatisfied with the deci- sion made by the dealership’s manage- Your name, address, and telephone ment, contact the Honda Marine number Customer Relations Office. You can write: A detailed description of the problem American Honda Motor Co., Inc.
  • Page 139 Your owner's manual was written to cover most of the questions you might ask about your Honda. Any questions not answered in the owner's manual can be answered by your Honda dealer. If your dealer doesn't have an immediate answer, they should be able to get it for you.

  • Page 140: 15. Index

    15. INDEX Stop Switch ..............Anode Metal ..............Fuel PRE-OPERATION CHECK ........44 Cap/Gauge/Vent/Knob (optional fuel tank) ....42 MOTOR PROTECTION SYSTEM ......90 Level ................Battery (not included) ............116 Line Connection ............53 Break-in Procedure ............Optional Fuel Tank ............53 Choke Knob..

  • Page 141: Stopping The Engine Tiller Handle Type

    15. INDEX Oil Pressure Indicator Light ..........TYPE) ........63 (PANEL-MOUNT Oil Pressure Indicator Light/Buzzer ..... .23, 29, 35 TOP-MOUNT TYPE) ....66 (SINGLE/DUAL Other Checks ..............Steering ................Over-Rev Limiter ............. Friction Adjustment............. Overheat Indicator Light ..........Stem bracket ......
  • Page 142 15. INDEX Operation ..............Trim Tab Controls ............... Adjustment ........................132 TROUBLESHOOTING Troubleshooting, Startcing Problems ....... 74 WARRANTY SERVICE ..........136 Water Intakes ........................... 14 1 WIRING DIAGRAM...
  • Page 144 16. WIRING DIAGRAM TILLER HANDLE TYPE 1.4 IGNlTlDN PULSE ------ ---- - ----- -- .-- _ -------- ---- I- - TRIM METER TACHOMETER To LlGHT/NG G&ND ICammery” a” EMERGENCY STOP SWITCH POWER TRlWTlLT SWITCH ,GN,“ON SWW34 . SPARK PLUG IGNITION SWITCH 3 SPARK PLUG POWER TILT SWITCH POWER TM...
  • Page 145 KLOMIBI 10XLN03 (2IdA.LLNflObU-H<IIS~ rti; ------_---------- I J-J-l& ,----- K-kbkc --------------- ____ fj$i ;uosN3s3l,m; ---- r---...

  • Page 146: Wiring Diagram

    16. WIRING DIAGRAM REMOTE CONTROL (PANEL/TO&MOUNT) l-NERMlSTOR IGNITION WLSE EMERGENCY STOP SWITCH EMERGENCY STOP SWITCH IGNITION SWITCH ARNING LAMP IGNITION SWTC” ‘I POWER...
  • Page 149 31ZW0602 200.2002.05 00X31-ZW0-6020 PRINTED IN U.S.A.

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